Wine? Sing, drinking one — then get another one! (7)
I believe the answer is:
chianti
'wine?' is the definition.
(Chianti is an example)
'sing drinking one then get another one' is the wordplay.
'sing' becomes 'chant' (chanting is a kind of singing).
'drinking' means one lot of letters goes inside another.
'one' becomes 'i' (roman numeral).
'then get' is a charade indicator (letters next to each other).
'another one' becomes 'i' (roman numeral. I am not sure about the 'another' bit.).
'chant' placed around 'i' is 'chiant'.
'chiant'+'i'='CHIANTI'
Can you help me to learn more?
(Other definitions for chianti that I've seen before include "Italian wine variety" , "Italian wine - mountain range" , "I can hit (anag) - alcoholic drink" , "Chain it to popular Italian wine" , "Dry red Italian wine" .)